Perceptual and spectrographic analysis of the words from the speech of children aged 5–7 years
Recognition of child speech of different ages is one of the most important problems in modern biology. The purpose of this work is to study the characteristics of the perception the words of children aged 5–7 years by Russian adults. The subject of the study is the words from the speech of children aged 5–7 years, abstracted from the phrase and compiled in the test. Comprehensive analysis of the words includes perceptual and acoustic spectrographic analysis and a method of audiometry to identify hearing thresholds. Russian native speakers recognize from 48 to 55 % of children’s words contained in the test with a probability of 0.75-1.0, which is significantly less than similarly recognized words of adult speech. Significant differences in recognition of words of children aged 5, 6 and 7 years were not found. Thus, we can assume that the model of articulation of vowels is not formed by the age of 7.
child speech, speech recognition
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